In the context of brain imaging, identify a true statement about positron emission tomography (PET).
A. It takes very clear, detailed images of the brain and other soft tissues.
B. It involves injecting a participant or patient with a radioactive form of oxygen.
C. It is the most widely used method for imaging myelinated fibers and tracts.
D. It is much safer than functional magnetic resonance imaging to measure metabolism in the brain.
Answer: B
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Recent studies indicate that children's understanding of causality is more sophisticated than Piaget believed. However, this depends upon
a. how the task is presented. b. whether the child is male or female. c. whether the researcher is male or female. d. whether the task is presented in a laboratory or in the child's home.
Why would animals and humans have biological predispositions to learn certain behaviors? The behaviors have:
A. value for scientists to study B. value for creating strife among groups C. value for psychopathology D. adaptive functions
Which statement is true regarding the findings of the Big Five study conducted by Srivastava and colleagues (2003)?
a. Agreeableness decreased over time b. Extraversion increased over time c. Neuroticism changed over time for women d. Conscientiousness was stable over adulthood
According to Eysenck's original model, which of the following is true about extraverts?
A. They generally have a high level of cortical arousal. B. They have learned through early experiences to enjoy social events. C. They generally have a low level of cortical arousal. D. They are low in neuroticism.